How much water does a 6 × 3.5 m pool hold?

About 16.8 m³ (16.8 tonnes of water) at 1.2–1.6 m depth — computed from the actual pool outline, not a rule of thumb.

How long does it take to fill?

Roughly 11 hours from a standard garden tap (~1.5 m³/h). A water delivery service fills it in a few hours.

Is this size right for my garden?

The water surface is 11.9 m²; plan roughly 1.5–2× that footprint including the surrounding deck. Open the plan in the designer and set your own deck margins to see the full footprint.

Can I change the depth or edge type?

Yes — open the plan in the designer and adjust depths, edge system (skimmer, deck-level overflow or raised), finishes and accessories freely.

Pool plan

6 × 3.5 m Kidney · pool plan

Compact pool

About this pool

A compact family size: big enough for proper swimming strokes and games, small enough that heating, covering and chemistry stay cheap. In most gardens this class hits the sweet spot between water you use daily and garden you keep.

The kidney is the archetypal free-form pool: one flowing bean-shaped curve with a waist that invites planting, a boulder or a slide. It blends into naturalistic landscapes better than any straight-walled shape and makes small gardens feel bigger because the eye never finds a hard boundary.

Open in the 3D designer

Free · no signup · runs in your browser

Plan view, 6 × 3.5 m — drawn to scale

The numbers, computed

Water surface: 11.9 m²
Water volume: 16.8 m³ (16,831 L)
Perimeter: 14.5 m
Depth: 1.2–1.6 m
Excavation approx.: 26 m³
Fill time (garden tap): 11 hours
Skimmers needed: 1×
Heat pump size: 6 kW

Figures are computed from the sampled pool outline and the plan's depths — the same geometry the 3D designer uses. Excavation includes shell and working allowance; your site conditions may differ.

Questions about this plan

How much water does a 6 × 3.5 m pool hold?: About 16.8 m³ (16.8 tonnes of water) at 1.2–1.6 m depth — computed from the actual pool outline, not a rule of thumb.
How long does it take to fill?: Roughly 11 hours from a standard garden tap (~1.5 m³/h). A water delivery service fills it in a few hours.
Is this size right for my garden?: The water surface is 11.9 m²; plan roughly 1.5–2× that footprint including the surrounding deck. Open the plan in the designer and set your own deck margins to see the full footprint.
Can I change the depth or edge type?: Yes — open the plan in the designer and adjust depths, edge system (skimmer, deck-level overflow or raised), finishes and accessories freely.